CN203226259U - Sectional selection device for tobacco laminae - Google Patents

Abstract

The utility model discloses segmental selection equipment for sliced tobacco. The equipment comprises a hemp thread removal device, a tobacco stem detection and removal device, a free-falling green smoke and moldy smoke detection and removal device, a manual selection device, and a tobacco stem detection and removal device. Leaf device; Raw sheet tobacco enters from the entrance of the flax removal device; Qualified sheet tobacco is output from the free-falling blue smoke and moldy smoke detection and removal device; The miscellaneous tobacco leaves are removed by artificial leaf selection device through manual removal of stems, and the leaves are blended into qualified tobacco sheets for recycling; The mixed tobacco leaves of green tobacco and mildewed tobacco are manually sorted and removed by manual leaf selection device, and then the available tobacco leaves are blended into qualified tobacco sheets for recycling. The sliced tobacco segmentation and selection equipment is easy to implement, has high detection and removal efficiency, and a high degree of automation.

Description

A sliced tobacco segmentation and selection equipment

technical field

The utility model relates to a sliced tobacco segmentation and selection equipment.

Background technique

In the tobacco processing link, tobacco sheets and tobacco stems need to be processed separately, and the "leaf stem content rate" in tobacco sheets is an important technical index to measure the quality of tobacco sheets. In order to obtain higher purity of tobacco sheets, The tobacco stems in the tobacco slices need to be removed as impurities, and reducing the stem content in the leaves can effectively improve the purity of the tobacco slices, thereby improving the quality of the tobacco slices. In addition, in addition to a small amount of tobacco stems, the raw tobacco sheets also contain fibrous impurities, immature green tobacco, mildewed tobacco sheets, and other impurities. The existence of these impurities directly affects the purity of the tobacco sheets. The degree will have a greater impact on the quality of the smoke sheet. At present, the screening and elimination methods of stalked tobacco slices widely used mainly include reprocessing after winnowing and artificial screening and impurity removal. The post-winding processing process is mainly used for the separation and processing of leaf stems. It is suitable for occasions where the shape of the tobacco leaves is large and the stems contained in the leaves are relatively thick. Because its floating rate is closer to that of pure tobacco leaves, this process method cannot realize the screening and rejection of small sheet-shaped and small-stem-diameter tobacco sheets with stems. The artificial screening and impurity removal process is generally used in the pretreatment section of the silk production line. Although this device can effectively identify, screen and remove small-sized, small-stemmed tobacco with stems, blue smoke, mildewed smoke, and other types of debris, it requires a lot of consumption. It requires a lot of manpower, and because the stalk content rate in the inner leaves of the tobacco slices before manual screening and removal of impurities is only 1.5-2%, the content of blue smoke, mildewed tobacco slices, and other sundries is only 0.1-0.5%. The screening and impurity removal process needs to screen all the smoke sheets, so the operating efficiency is low.

Therefore, it is absolutely necessary to research and develop a new selected cigarette device to completely remove the stem impurities, fiber impurities, blue smoke, mildewed tobacco sheets, and other impurities in the cigarette sheets, so as to ensure the quality of cigarettes and improve the quality of cigarettes. Improve the quality of cigarettes, and improve the working efficiency for the subsequent processing of tobacco sheets.

Utility model content

The technical problem to be solved by the utility model is to provide a sliced tobacco segmentation and selection equipment, which is easy to implement, has high detection and elimination efficiency, and has a high degree of automation.

The technical solution of the utility model is as follows:

A sliced tobacco segmentation and selection equipment, including a hemp silk removal device, a tobacco stem detection and removal device, a free-falling green smoke and moldy smoke detection and removal device, and a manual leaf selection device arranged in sequence; The entrance of the rejecting device enters; qualified laminar tobacco is output from the free-falling blue smoke and mildewed smoke detection and rejecting device; the miscellaneous tobacco leaves containing tobacco stems separated by the stem detection and rejecting device are passed through manually by a manual leaf selection device. The tobacco stems are removed by the method of destemming, and the leaves are blended into qualified tobacco sheets for recycling; Tobacco leaves are manually sorted and removed by manual leaf selection device, and the available tobacco leaves are blended into qualified tobacco sheets for recycling.

The free-falling green smoke and moldy smoke detection and removal device includes a frame (10), a feed chute (13), a rejection chute (11), an acceptance chute (17), a first camera (12), second camera device (15), background roller (14), image recognition module, air blowing and rejecting device (16); feed chute (13), rejection chute (11), acceptance chute (17) and imaging device (12,15) are all installed on the frame (10); Connecting belt conveyor (5) links to each other with the entrance of feed chute (13), and background roller (14) is arranged on feed chute ( 13) below the outlet; the camera device (12, 15) is positioned at the side of the background roller (14), and the light inlet of the camera device faces the background roller (14); Below the device (16), the rejecting chute (11) is arranged opposite to the accepting chute (17); the blowing and rejecting device (16) includes a blowing nozzle (18) and a device for controlling the air passage of the blowing nozzle (18). Solenoid valve (19), solenoid valve (19) communicates with air source; Blow nozzle (18) is arranged on the side between background roller (14) and the upper mouth of rejection trough (11); Blow nozzle (18) blows When blowing air, the tobacco leaves are blown into the rejecting chute (11); when the blowing nozzle (18) is not blowing, the tobacco leaves freely fall into the accepting chute (17); the camera devices (12, 15) output the captured tobacco leaves The image information is sent to the image recognition module, and the solenoid valve (19) is controlled by the output signal of the image recognition module.

There are two background rollers (14) arranged side by side horizontally; two sets of imaging devices are arranged on both sides of the two background rollers (14), and the light inlets of the two sets of imaging devices are respectively facing the two background rollers (14) , each set of camera devices contains a digital camera (21) and an LED light source (20) positioned at the front end of the camera device; two sets of camera devices are provided with an air intake duct interface for introducing airflow from the outside.

The hemp thread removal device [see A hemp thread removal device-201020219427.2] includes a drive roller driven by a driver with a brush or sticky strip on it, and a tobacco leaf collection conveyor belt located below the drive roller, which is characterized in that the drive roller One end is suspended in the air, and the other end is connected with the driver, and a roller cover with a brush or sticky strip on the surface is sleeved on the transmission roller; The end of the connected drive roller is directly connected to the power shaft of the power driver through the bearing seat with bearings on it; Connected to the driving wheel mounted on the main shaft of the power driver;

The tobacco stem detection and removal device includes [publication number: 102687902A, application number: 201210188576.6 application date: 2012-06-08, an intelligent tobacco stem detection and removal device and its working method] including a closed metal cavity set in the device The high-speed conveyor belt inside the body, the line-scanning soft X-ray receiving sensor arranged under the high-speed conveyor belt, the soft X-ray generating tube placed in the metal cavity above the line-scanning soft X-ray receiving sensor, and the line-scanning soft X-ray receiving sensor The high-speed computer connected with the receiving sensor is characterized in that the soft X-ray generating tube is used to generate low-energy soft X-rays, and the rays are used to continuously transmit and scan the smoke sheets transported by the high-speed conveyor belt. The line-scanning soft X-ray receiving sensor will The image generated after scanning is sent to the high-speed computer, and the high-speed computer is used for intelligent calculation and analysis, to accurately measure the diameter of the tobacco stem in the tobacco sheet, and to intelligently identify and locate the stem-bearing tobacco sheet with a stem content exceeding the set value track;

The manual leaf selection unit [see Tobacco Line Sheet Smoke Selection System and Process-2000910094030.2, Publication No. CN101502338A] includes a feeding conveyor connected with the smoke storage cabinet, a receiving conveyor connected with the feeder, and It includes feeding two-way conveyor, material separating two-way conveyor, leaf sorting and material sorting conveying unit and leaf sorting operation conveying unit. Under the condition that the feeding and receiving flow rates are the same, it can realize the dynamic sending and receiving conveying and the static leaf selection operation and conveying, that is, in the production process that ensures the uninterrupted continuity of sending and receiving materials and the uniformity of material flow Realize static manual leaf selection, completely remove mildewed tobacco leaves, tobacco stems, leaf veins and other impurities in tobacco sheets through manual manual selection, effectively avoid tobacco leaf crushing and missed selection, improve the purity of tobacco leaves, thereby improving the quality of cigarettes and ensuring the quality of cigarettes , while effectively improving the operating efficiency of the equipment.

The method for segmenting and refining tobacco based on the aforementioned equipment for segmenting and refining tobacco, corresponding to the device, includes the following steps:

Step 1: pretreatment; for horizontal spreading material (ie tobacco leaves);

Step 2: winding and removing impurities;

Adopt described hemp silk removing device to reject the fibrous sundries (such as hemp silk and hemp rope) mixed in the tobacco leaf;

Step 3: Tobacco stem transmission imaging recognition and tobacco stem shunt removal;

Using the tobacco stem detection and removal device to remove the stemmed impurities in the tobacco leaves;

Step 4: Multispectral imaging identification and Penicillium elimination;

Using the free-falling green smoke and moldy smoke detection and removal device to detect and remove the green smoke and mildew smoke in tobacco leaves based on image processing;

Step 5: manual destemming and manual selection;

Manual destemming adopts the above-mentioned manual leaf selection unit, which is used to remove the tobacco stems from the mixed tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device through manual destemming, and the leaves are blended into qualified sheet tobacco for recycling;

Manual selection uses the manual selection belt conveyor to select and remove the miscellaneous tobacco leaves with green smoke and moldy smoke separated by the falling blue smoke and moldy smoke detection and removal device through manual sorting and impurity removal. For miscellaneous products, available tobacco leaves are blended into qualified tobacco sheets for recycling.

In the steps of multi-spectral imaging identification and penicillium removal, the tobacco leaves are dropped from the connecting belt conveyor (5) onto the feeding chute (13), accelerated down the feeding chute to the detection area, and a CCD camera is used to photograph the passing Tobacco leaf images in the detection area;

Illumination is provided by the LED lighting source (20), and the camera (21) collects the tobacco leaf image on the background roller (14) and sends it to the image processing system; the image processing system recognizes whether there is blue smoke and mildew in the tobacco leaf corresponding to the current tobacco leaf image through image processing. Change smoke, and control according to identification result and reject air valve (19);

(1) If the image processing system judges that there is no green smoke and mildewed smoke in the tobacco leaf corresponding to the current tobacco leaf image, the reject air valve (19) does not operate, and the tobacco leaf falls into the receiving trough (17);

(2) If the image processing system judges that there is green smoke and mildewed smoke in the tobacco leaf corresponding to the current tobacco leaf image, the air valve (19) will be removed and the falling tobacco leaf will be blown into the reject trough (11), and the process will be completed. Elimination of blue smoke and mildewed smoke; the image processing system identifies green smoke and moldy smoke according to the H component representing the image tone in the tobacco leaf image; if the H component of the current tobacco leaf image is less than or equal to 60, then determine the current tobacco leaf image corresponding to There are no blue smoke and moldy smoke in the tobacco leaves; otherwise, if the H component of the current tobacco leaf image is greater than 60, it is determined that there are blue smoke and moldy smoke in the tobacco leaves corresponding to the current tobacco leaf image;

The camera device is provided with an air intake pipe interface, which introduces airflow from the outside and forms an outward airflow at the entrance of the camera device to prevent debris from entering from the entrance of the camera device, so as to avoid the interference of debris on the camera device when the machine is working.

According to the different physical characteristics of the impurities in the tobacco slices, the utility model realizes segmental selection of tobacco slices through technical means such as winding and removing impurities, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + mildew and impurities removal, etc. Clean up.

The fibrous debris such as hemp silk and hemp rope mixed in the tobacco leaves must be wound on the rejecting roller by rotating and winding to realize removal.

The detection of tobacco slices with stems must be realized by tobacco stem transmission imaging recognition technology. By adopting the principle of low-energy X-ray transmission imaging, the difference between the absorption of low-energy X-rays by tobacco leaves and tobacco stems due to different densities is used to form on the imaging device. Image processing and analysis and calculation are carried out on the difference of image contrast, so as to realize the identification and coordinate positioning of the tobacco stems mixed in the tobacco leaves.

The light source of the green smoke and moldy smoke detection and removal device must use the visible light band, and white light or mixed light mixed in other proportions can be used. The camera adopts three CCD line scan cameras.

Background roller (14) should select the bigger color with cyan and gray contrast ratio, as colors such as blue or magenta.

The working process of the hemp removal device is as follows: the hemp removal device is equipped with two sets of transmission rollers arranged up and down, one end of each transmission roller is suspended in the air, and the other end is directly connected to the power driver through the bearing seat with bearing on it— —The power shaft of the motor is connected, and the roller cover with sticky strips on the surface is sleeved on each transmission roller, and the forward transportation of the tobacco leaves is realized through the rotation of the roller covers; The contact of the upper row of driving rollers removes the fiber impurities mixed in it. When the tobacco leaves enter the lower row of driving rollers, the tobacco leaf layer is automatically turned over, so that the upper layer of tobacco leaves is in contact with the lower row of driving rollers during the conveying process. The fibrous sundries mixed in it are removed, and the cleaned tobacco leaves are sent to the next-level processing unit by the high-speed belt conveyor (3).

The working process of the tobacco stem detection and removal device is as follows: the tobacco leaves enter the tobacco stem detection and removal device from the high-speed belt conveyor (3) and then are transported forward by the built-in belt conveyor. The soft X-ray generating tube in the metal cavity above the scanning soft X-ray receiving sensor emits electron beams to strike the anode metal to generate X-rays, and different energy losses are generated due to different densities of X-rays penetrating objects, thus online scanning soft X-rays Different gray levels are formed on the ray receiving sensor, and the line-scanning soft X-ray receiving sensor installed under the belt conveyor is connected to a high-speed computer. Filter the part whose intensity is lower than the set value, measure the diameter of the tobacco stem through the pixel measurement algorithm for the image exceeding the set gray value, and calculate the coordinate position of the tobacco sheet whose diameter exceeds the set value For continuous tracking, the high-speed air valve matrix set at the oblique upper or lower end of the belt conveyor outlet is composed of multiple high-speed air valves. Matrix control component control, the high-speed air valve matrix control component receives the coordinates and tracking information of unqualified smoke sheets from the high-speed computer, and then controls the corresponding nozzle action in the high-speed air valve matrix, using the compressed air source connected to it to provide The compressed air can change the flight trajectory of the unqualified cigarette through the injection of the nozzle, so as to realize the purpose of automatic screening and separation of the cigarette with a stem content exceeding the set value from the qualified cigarette, and the qualified cigarette is separated by the connecting belt The machine (5) is sent to the next-level processing unit, and the unqualified cigarette sheet is sent out by the output belt machine (9) with stem tobacco.

The working process of the free-falling green smoke and mildew smoke detection and removal device is as follows: the tobacco leaves enter the feeding chute 13 of the free-fall green smoke and mildew smoke detection and removal device from the connecting belt conveyor (5), and the free-fall type The green smoke and moldy smoke detection and removal device is mainly composed of a light source, a camera, an image processing mechanism, and a removal device. The light source illuminates the free-falling tobacco leaves sent out from the feeding chute 13, and the camera collects images of the tobacco leaves and transmits them to the image processing mechanism. The image processing mechanism processes the image data to identify whether there are blue smoke, mildewed tobacco leaves, and non-grade tobacco leaves. If there are above-mentioned tobacco leaves, the position of the tobacco leaves is calculated, and the information is sent to the rejecting mechanism, which includes a mouthpiece 18 and a solenoid valve 19 . When the green smoke, mildewed tobacco leaves and non-grade tobacco leaves move to the blowing nozzle 18, the solenoid valve 19 will control the blowing nozzle 18 to eject gas to blow the green smoke, mildewed tobacco leaves and non-grade tobacco leaves into the reject trough 11 Realize the rejection of non-grade tobacco leaves such as blue smoke and mildewed tobacco leaves, and qualified tobacco leaves then directly fall into the receiving trough 17.

The system includes pretreatment, winding and impurity removal, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + penicillium removal, manual destemming and manual selection;

The pretreatment system comprises a vibrating tank (1) and a high-speed belt conveyor (3); the input end of the vibrating tank (1) is connected to the feeder, and the outlet of the vibrating tank (1) is connected to the entrance of the hemp removal device (2); The high-speed belt conveyor (3) is arranged at the bottom of the hemp silk removal device (2), and the tobacco leaves output by the hemp silk removal device (2) then directly fall into the high-speed belt conveyor (3); the vibrating groove (1) is used to receive The tobacco leaves sent in by the feeder are spread and thinned in the horizontal direction through vibration conveying; the high-speed belt conveyor (3) is used to thin the thickness of the tobacco leaf material layer through high-speed conveying to avoid overlapping of tobacco leaves and affect subsequent detection and identification;

The winding impurity removal system includes a hemp silk removal device (2), whose inlet is connected to the vibrating tank (1), and whose outlet is at its lower part and connected to the high-speed belt conveyor (3);

Tobacco stem transmission imaging recognition + tobacco stem shunt removal system includes tobacco stem detection and removal device (4), connecting belt conveyor (5) and stem tobacco output belt conveyor (9); tobacco stem detection and removal device (4) feed port and The discharge port of the high-speed belt conveyor (3) is connected, and a stem-containing tobacco leaf shunt and reject port is arranged in the middle, and the discharge port of the tobacco stem detection and reject device (4) is connected with the connecting belt conveyor (5); the stem-containing tobacco leaf shunt and reject The outlet is connected with the stemmed tobacco output belt conveyor (9), which is used to send the miscellaneous tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device (4) to the manual leaf selection device so that the tobacco leaves can be separated by manual destemming. The leaves from which the stems are removed are blended into qualified tobacco sheets for recycling; the connecting belt conveyor (5) is used to send the qualified tobacco sheets screened by the tobacco stem detection and removal device (4) to the next-level processing unit;

Multi-spectral imaging identification + penicillium removal system includes free-falling green smoke and moldy smoke detection and removal device (6), allowable material belt conveyor (7) and green smoke and moldy smoke output belt conveyor (8); free The feeding chute (13) on the drop-type green smoke and mildew smoke detection and removal device (6) is connected with the discharge port of the connecting belt conveyor (5); the output belt conveyor (8 ) is connected with the rejection trough (11) on the free-falling green smoke and mildew smoke detection and rejection device (6), and is used to separate the free-fall green smoke and mildew smoke detection and rejection device (6). The mixed tobacco leaves containing blue smoke and mildewed smoke are sent to the manual leaf selection device to realize manual sorting and impurity removal, and then the available tobacco leaves are blended into qualified tobacco sheets for recycling; (7) be connected with the allowable feed tank (17) on the free-falling blue smoke and mildewed smoke detection and rejecting device (6), for detecting and rejecting the free-falling green smoke and mildewed smoke ( 6) The qualified smoked sheets are sent to the next processing unit;

The manual destemming system includes a manual leaf selection unit, the entrance of which is connected to the output belt conveyor (9) of the stemmed tobacco, which is used to manually destem the miscellaneous tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device (4). The tobacco stems are removed by means of the method, and the leaves are blended into qualified sheet tobacco for recycling;

The manual selection system includes a manual selection belt conveyor, the inlet of which is connected to the green smoke and moldy smoke output belt conveyor (8), used to separate the free-falling green smoke and moldy smoke detection and removal device (6) containing The mixed tobacco leaves of green tobacco and mildewed tobacco are manually sorted and removed, and the usable tobacco leaves are blended into qualified tobacco for recycling;

Beneficial effect:

The sliced tobacco segmental selection equipment of the utility model can carry out multi-stage intelligent detection and recognition of the fiber impurities, stalked impurities, blue smoke, and mildewed tobacco slices mixed in the continuously conveyed tobacco slices by category, Further processing is carried out on the detected tobacco leaves with impurities, so as to improve the purity of the tobacco leaves and improve the quality of the cigarettes.

The utility model concentrates the stalked impurities, blue smoke and mildewed tobacco sheets mixed in the raw tobacco leaves into a small part of the tobacco leaves that are automatically separated by means of intelligent detection and identification, and can further be separated by manual selection. Tobacco leaves are sorted and destemmed, thereby greatly reducing the flow of tobacco leaves that need to be manually sorted, which can effectively improve the operating efficiency of the selection and removal operators and reduce the usage of the selection and removal operators.

The segmental selection method of tobacco slices includes the pretreatment means set at the front end of winding and impurity removal for horizontal spreading of materials, the means of winding and impurity removal for removing fiber impurities, and the connection of winding and impurity removal for thinning the material thickness The high-speed conveyor belt is connected with the high-speed conveyor belt for tobacco stem transmission imaging identification process for tobacco stem detection (that is, the corresponding step of removing impurities with stems), and then adopts multi-spectral imaging recognition technology to remove moldy smoke and blue smoke ( Corresponding to the detection and removal steps of green smoke and moldy smoke), according to the different physical characteristics of the impurities in the tobacco sheet, it is realized by winding and removing impurities, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + mold and green impurities removal Segmentation of laminar tobacco is carefully selected and impurity removed.

The pretreatment adopts feeding and vibrating conveying equipment, which is used to uniform the material flow and uniformly spread the smoke sheets horizontally on the conveying section to avoid overlapping of the smoke sheets and facilitate the detection, identification and shunting of impurities.

The winding impurity removal adopts the core roller impurity removal equipment, and the fibrous impurities are wound on the rejecting roller by the rotating winding method to realize the removal of the fibrous impurities.

The high-speed conveyor belt is set at the outlet of the core roller impurity removal equipment. By increasing the conveying speed, the thickness of the tobacco sheets on the conveyor belt can be thinned, so as to avoid overlapping of the smoke sheets and facilitate the detection and identification of impurities and the separation and removal of impurities.

The tobacco stem transmission imaging recognition technology (corresponding to the tobacco stem detection and removal device) adopts the principle of low-energy X-ray transmission imaging, and utilizes the images formed on the imaging device due to the different absorption of low-energy X-rays due to the different densities of tobacco leaves and tobacco stems. Image processing and analysis and calculation are carried out on the contrast difference, so as to realize the identification and coordinate positioning of the tobacco stems mixed in the tobacco leaves.

The tobacco stem diversion and removal (that is, related to the high-speed air valve matrix of the tobacco stem detection and removal device, the diversion and rejection port of the stem-containing tobacco leaves, the discharge port of the tobacco stem detection and rejection device, etc.) uses a high-speed computer to detect the stems exceeding the set value. Intelligent screening and coordinate positioning and tracking of high-speed smoke sheets, using high-speed belts at the discharge port to throw up the smoke sheets and synchronously calculate their air coordinates, and change the unqualified smoke sheets by controlling the high-speed air valve matrix and using compressed air injection The flight trajectory, so as to achieve the purpose of automatic screening and diversion of the smoke sheets with the stem content exceeding the set value and the qualified smoke sheets.

The multi-spectral imaging identification (corresponding to the detection steps of blue smoke and mildewed smoke) adopts the principle of multi-spectral imaging, and uses the difference in imaging color between tobacco leaves and immature green tobacco, mildewed tobacco, and non-grade tobacco leaves to perform image processing under multi-spectral irradiation. Processing, analysis and calculation, so as to realize the identification and coordinate positioning of immature green tobacco, mildewed tobacco and non-grade tobacco leaves mixed in the tobacco leaves.

Described moldy smoke, blue smoke removal (corresponding blue smoke and moldy smoke removal step) its image processing system identifies blue smoke, mildew smoke, non-grade tobacco leaf according to the H component that represents image hue in the tobacco leaf image; If the current tobacco leaf image If the H component is less than or equal to 60, it is determined that there is no blue smoke, mildewed tobacco, or non-grade tobacco leaves in the tobacco leaf corresponding to the current tobacco leaf image; otherwise, if the H component of the current tobacco leaf image is greater than 60, it is determined that there is Green smoke, moldy smoke, and non-grade tobacco leaves, so as to realize the purpose of automatic screening and diversion of green smoke, mildew smoke, non-grade tobacco leaves and qualified tobacco sheets.

The free-falling green smoke and moldy smoke detection and removal device of the utility model utilizes the principle that tobacco leaves fall freely at a certain initial velocity, and a free-falling track (ie, a channel) is set during the free-falling process of tobacco leaves. When the tobacco leaves leave the track and fall to a certain distance, the intelligent detection devices distributed on both sides of the track will work to detect the tobacco leaves at this position, mark the "green, moldy, and non-grade" tobacco leaves, and send the signal When the unqualified tobacco leaves and impurities fall to the height of the air nozzle, the electromagnetic valve of the blowing and rejecting device will work. The unqualified tobacco leaves and impurities parabolically enter the rejecting chute along the airflow direction of the blowing nozzle, and slide down along the rejecting chute to the conveyor belt conveyor for unqualified products. Qualified tobacco leaves enter into the receiving chute along the trajectory of the falling track, and slide down along the receiving chute to the conveyor belt conveyor for qualified products.

In the intelligent detection device, in order to ensure the strict sealing of the detection part, a pressurized dust removal method is adopted to ensure the cleanliness of the light source part and reduce the interference of dust in the environment on the detection device. In the rejecting trough, the impurities and dust in the unqualified tobacco leaves are removed by means of negative pressure.

The free-falling green smoke and moldy smoke detection and removal device of the utility model is composed of the following two parts: a free-fall channel, and an optical identification and removal system. In view of the fact that current equipment cannot accurately identify green smoke and moldy smoke, a device that can accurately identify and remove green smoke and moldy smoke contained in tobacco leaves is provided to effectively solve the existing problems. Use the light source to irradiate the tobacco leaves, the camera collects the images of the tobacco leaves and transmits them to the image processing mechanism, and the image processing mechanism processes the image data to identify whether there are blue smoke, mildewed tobacco leaves, and non-grade tobacco leaves, etc.

The image processing system processes the image data to identify whether there are blue smoke, mildewed tobacco leaves and non-grade tobacco leaves. If the above-mentioned tobacco leaves exist, the position of the tobacco leaves is calculated, and the rejecting mechanism is notified to remove the identified non-grade tobacco leaves such as blue smoke and mildewed tobacco leaves.

The core of the utility model is to realize the classification of the tobacco slices through technical means such as winding and removing impurities, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + mildew and impurities removal, etc. Segment selection and impurity removal, the utility model has the following advantages:

1. According to the different physical characteristics of the impurities in the tobacco sheets, the segmental selection and removal of the tobacco sheets is realized by winding and removing impurities, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + mold and green impurities removal, etc. Miscellaneous, in the process of tobacco leaf processing, it realizes segmented and multi-level intelligent detection and identification of stalked impurities, fiber impurities, blue smoke, mildewed tobacco sheets, and non-grade tobacco sheets in the continuously conveyed tobacco sheets. And further process the detected sundries, so as to improve the purity of tobacco leaves and improve the quality of cigarettes;

2. Concentrate the stalked impurities, blue smoke, mildewed tobacco sheets, and non-grade tobacco sheets mixed in the raw tobacco leaves into a small part of the tobacco leaves that are automatically separated by means of intelligent detection and identification, and manually select them The outflowing tobacco leaves are sorted and destemmed, thereby greatly reducing the flow of tobacco leaves that need to be manually sorted, which can effectively improve the operating efficiency of the selection and removal operators and reduce the usage of the selection and removal operators;

3. Select and remove the stems from the separated tobacco leaves by adopting manual destemming and manual selection methods, and the qualified tobacco leaves are then mixed back for utilization to improve the utilization rate of raw materials.

4. It can adapt to the production situation of large flow and detect and eliminate in real time, which is suitable for assembly line operation;

5. The removal is accurate, and the number of normal leaves brought out is small;

6. Compared with the current manual method for removing stalked impurities, blue smoke, and mildewed smoke, the removal efficiency is greatly improved and the labor time is shortened;

7. There are fewer wearing parts, and the usual maintenance cost is lower;

8. It can be used in combination with other existing tobacco impurity removal systems, so that the advantages of various technologies can be combined.

Segmentation and selection methods for sliced tobacco include pretreatment, winding and impurity removal, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + penicillium removal, manual destemming and manual selection, to achieve continuous transport of tobacco sheets The mixed fibrous impurities, stalked impurities, blue smoke, and mildewed tobacco sheets are segmented and classified according to multi-level intelligent detection and identification, and the detected impurities are further processed, so as to improve the purity of tobacco leaves and improve the quality of cigarettes .

According to the multi-level intelligent detection and identification of the sub-categories, the stalked impurities, blue smoke, and mildewed tobacco sheets mixed in the raw tobacco leaves are concentrated into a small part of the tobacco leaves that are automatically diverted by means of intelligent detection and identification. Selecting and destemming the separated tobacco leaves in a selected way, thereby greatly reducing the flow of tobacco leaves that need to be manually selected, which can effectively improve the efficiency of the selection and removal operators and reduce the use of selection and removal operators .

Manual destemming and manual selection are used to remove the stems from the tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device. The artificial leaf selection device is used to remove the tobacco stems through manual destemming, and the leaves are blended into qualified sheets. Tobacco is used for recycling, and the free-falling green smoke and moldy smoke detection and removal device separates the mixed tobacco leaves containing green smoke and mildew smoke, and uses the manual leaf selection device to manually sort and remove impurities. Blending into qualified laminar tobacco for recycling, thereby improving the utilization rate of tobacco leaves.

Description of drawings

Fig. 1 is the layout diagram of the sliced tobacco segmentation and selection system;

Fig. 2 is the process flow diagram of the sliced tobacco segmental selection system;

Fig. 3 is a schematic structural diagram of a free-falling green smoke and moldy smoke detection and removal device;

Fig. 4 is the distribution and arrangement diagram of nozzles and solenoid valves in the free-falling green smoke and moldy smoke detection and removal device;

Fig. 5 is A-A sectional view among Fig. 4;

Fig. 6 is the structural diagram of the first camera device in the free-falling green smoke and moldy smoke detection and removal device;

Fig. 7 is a schematic diagram of tobacco leaves passing through the free-falling green smoke and moldy smoke detection and removal device;

Fig. 8 is the HIS distribution of qualified tobacco leaf;

Fig. 9 is the HIS distribution of Qingyan tobacco leaves;

Explanation of symbols: 1-vibration tank; 2-hemp removal device; 3-high-speed belt conveyor [where the linear speed of the belt is 1.5m/s]; 4-tobacco stem detection and removal device; 5-connecting belt conveyor; 6-freedom Falling green smoke and moldy smoke detection and removal device; 7-received material belt conveyor; 8-green smoke and moldy smoke output belt conveyor; 9-stem tobacco output belt conveyor; 10-frame, 11-rejection Material chute, 12-first camera device, 13-feed chute, 14-background roller, 15-second camera device, 16-blowing and rejecting device, 17-receiving chute, 18-blowing nozzle, 19- Solenoid valve, 20-LED light source, 21-digital video camera.

Detailed ways

The utility model will be described in further detail below in conjunction with accompanying drawing and specific embodiment:

Example 1:

As shown in Fig. 2, a kind of tobacco laminar segmentation selection method comprises the following steps:

Step 1: pretreatment; for horizontal spreading material (ie tobacco leaves),

Step 2: winding and removing impurities;

Using the hemp removing device to remove fibrous impurities such as hemp and hemp rope mixed in the tobacco leaves;

Step 3: Tobacco stem transmission imaging recognition + tobacco stem shunt removal;

Using the tobacco stem detection and removal device to remove the stemmed impurities in the tobacco leaves;

Step 4: Multispectral imaging recognition + Penicillium removal;

Using the free-falling green smoke and moldy smoke detection and removal device based on image processing to detect and remove the green smoke and mildew smoke in the tobacco leaves;

Step 5: manual destemming and manual selection;

Manual destemming adopts the manual leaf selection unit to remove the stems from the mixed tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device, and the tobacco stems are removed by manual destemming, and the leaves are blended into qualified tobacco sheets for recycling;

Manual selection uses the manual selection belt conveyor to select and remove the miscellaneous tobacco leaves with green smoke and moldy smoke separated by the falling blue smoke and moldy smoke detection and removal device through manual sorting and impurity removal. For miscellaneous products, available tobacco leaves are blended into qualified tobacco sheets for recycling.

Corresponding sliced tobacco segmentation selection method The corresponding sliced tobacco segmentation selection equipment includes hemp silk removal device, tobacco stem detection and removal device, free-falling green smoke and moldy smoke detection and removal device, manual leaf selection device; the raw sheet tobacco enters from the entrance of the hemp silk removal device; the qualified sheet tobacco is output from the free-falling blue smoke and moldy smoke detection and removal device; Tobacco leaves are removed by artificial leaf selection device through manual destemming, and the leaves are blended into qualified tobacco sheets for recycling; The mixed tobacco leaves of tobacco and moldy tobacco are manually sorted and removed by manual leaf selection device, and then the available tobacco leaves are blended into qualified tobacco sheets for recycling.

As shown in Figure 1, the sliced tobacco segmentation and selection equipment includes pretreatment, winding and impurity removal, tobacco stem transmission imaging recognition + tobacco stem shunt removal, multi-spectral imaging recognition + penicillium removal, manual destemming and manual selection;

The pretreatment system comprises a vibrating tank (1) and a high-speed belt conveyor (3); the input end of the vibrating tank (1) is connected to the feeder, and the outlet of the vibrating tank (1) is connected to the entrance of the hemp removal device (2); The high-speed belt conveyor (3) is arranged at the bottom of the hemp silk removal device (2), and the tobacco leaves output by the hemp silk removal device (2) then directly fall into the high-speed belt conveyor (3); the vibrating groove (1) is used to receive The tobacco leaves sent in by the feeder are spread and thinned in the horizontal direction through vibration conveying; the high-speed belt conveyor (3) is used to thin the thickness of the tobacco leaf material layer through high-speed conveying to avoid overlapping of tobacco leaves and affect subsequent detection and identification;

The winding impurity removal system includes a hemp silk removal device (2), whose inlet is connected to the vibrating tank (1), and whose outlet is at its lower part and connected to the high-speed belt conveyor (3);

Tobacco stem transmission imaging recognition + tobacco stem shunt removal system includes tobacco stem detection and removal device (4), connecting belt conveyor (5) and stem tobacco output belt conveyor (9); tobacco stem detection and removal device (4) feed port and The discharge port of the high-speed belt conveyor (3) is connected, and a stem-containing tobacco leaf shunt and reject port is arranged in the middle, and the discharge port of the tobacco stem detection and reject device (4) is connected with the connecting belt conveyor (5); the stem-containing tobacco leaf shunt and reject The outlet is connected with the stemmed tobacco output belt conveyor (9), which is used to send the miscellaneous tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device (4) to the manual leaf selection device so that the tobacco leaves can be separated by manual destemming. The leaves from which the stems are removed are blended into qualified tobacco sheets for recycling; the connecting belt conveyor (5) is used to send the qualified tobacco sheets screened by the tobacco stem detection and removal device (4) to the next-level processing unit;

Multi-spectral imaging identification + penicillium removal system includes free-falling green smoke and moldy smoke detection and removal device (6), allowable material belt conveyor (7) and green smoke and moldy smoke output belt conveyor (8); free The feeding chute (13) on the drop-type green smoke and mildew smoke detection and removal device (6) is connected with the discharge port of the connecting belt conveyor (5); the output belt conveyor (8 ) is connected with the rejection trough (11) on the free-falling green smoke and mildew smoke detection and rejection device (6), and is used to separate the free-fall green smoke and mildew smoke detection and rejection device (6). The mixed tobacco leaves containing blue smoke and mildewed smoke are sent to the manual leaf selection device to realize manual sorting and impurity removal, and then the available tobacco leaves are blended into qualified tobacco sheets for recycling; (7) be connected with the allowable feed tank (17) on the free-falling blue smoke and mildewed smoke detection and rejecting device (6), for detecting and rejecting the free-falling green smoke and mildewed smoke ( 6) The qualified smoked sheets are sent to the next processing unit;

The manual destemming system includes a manual leaf selection unit, the entrance of which is connected to the output belt conveyor (9) of the stemmed tobacco, which is used to manually destem the miscellaneous tobacco leaves containing tobacco stems separated by the tobacco stem detection and removal device (4). The tobacco stems are removed by means of the method, and the leaves are blended into qualified sheet tobacco for recycling;

The manual selection system includes a manual selection belt conveyor, the inlet of which is connected to the green smoke and moldy smoke output belt conveyor (8), used to separate the free-falling green smoke and moldy smoke detection and removal device (6) containing The mixed tobacco leaves of green tobacco and mildewed tobacco are manually sorted and removed, and the usable tobacco leaves are blended into qualified tobacco for recycling;

The free-falling type green smoke and moldy smoke detection and removal device (6), its LED lighting source (20) adopts LED prism concentrating light source, camera adopts three CCD line scan cameras, background roller (14) selects blue or magenta.

A method for detecting and removing green smoke and moldy smoke, using the aforementioned free-falling device for detecting and removing green smoke and mildew smoke;

The method is as follows: the tobacco leaves are dropped from the connecting belt conveyor (5) onto the feeding chute (13), accelerated down through the feeding chute to the detection area, and a CCD camera device is used to capture images of the tobacco leaves passing through the detection area;

Illumination is provided by the LED lighting source (20), and the camera (21) collects the tobacco leaf image on the background roller (14) and sends it to the image processing system; the image processing system recognizes whether there is blue smoke and mildew in the tobacco leaf corresponding to the current tobacco leaf image through image processing. Change smoke, and control according to identification result and reject air valve (19);

(1) If the image processing system judges that there is no green smoke and mildewed smoke in the tobacco leaf corresponding to the current tobacco leaf image, the reject air valve (19) does not operate, and the tobacco leaf falls into the receiving chute (17);

(2) If the image processing system judges that there is green smoke and mildewed smoke in the tobacco leaf corresponding to the current tobacco leaf image, the air valve (19) will be removed and the falling tobacco leaf will be blown into the reject trough (11), and the process will be completed. Elimination of blue smoke and moldy smoke.

The image processing system identifies blue smoke and mildewed smoke according to the H component representing the image tone in the tobacco leaf image; if the H component of the current tobacco leaf image is less than or equal to 60, it is determined that there is no green smoke and mildewed smoke in the tobacco leaf corresponding to the current tobacco leaf image ; Otherwise, if the H component of the current tobacco leaf image is greater than 60, it is determined that green smoke and moldy smoke exist in the tobacco leaf corresponding to the current tobacco leaf image;

Example 1:

As shown in Figure 1, a sliced tobacco segmental selection equipment consists of a vibrating tank 1, a hemp silk removal device 2, a high-speed belt conveyor 3, a tobacco stem detection and removal device 4, a connecting belt conveyor 5, free-falling green smoke and mildewed smoke Detecting and rejecting device 6, material receiving belt conveyor 7, blue smoke and moldy smoke output belt conveyor 8, stem tobacco output belt conveyor 9, manual leaf selection unit, manual selection belt conveyor and other parts.

System connection method: Figure 1 is the layout diagram of the sliced tobacco segment selection system. The left side of the system is the vibrating tank 1, which is placed obliquely (here can be horizontal or inclined. The working principle of the vibrating tank is that the vibrating tank is constantly shaking, and the tobacco leaves will Along with the vibration of the vibrating groove moving forward, the main function of the vibrating groove is to shake the tobacco leaves and spread them evenly in the horizontal direction), and the hemp silk removal device 2 is placed on the right side of the vibration groove 1, as shown in Figure 1, the hemp silk removal device 2 is located at Below the vibrating tank 1, the center of the first rejecting roller is located below the outlet of the vibrating tank 1; a high-speed belt 3 is set under the hemp removing device 2, and the discharge port of the high-speed belt 3 is connected with the feed port of the tobacco stem detecting and rejecting device 6 The middle part of the tobacco stem detection and removal device 6 is provided with a diversion and removal port for tobacco leaves containing stems, and the outlet of the tobacco stem detection and removal device 4 is connected to the connecting belt conveyor 5; The discharge port on the connecting belt conveyor 5 is connected with the feed chute 13 on the free-falling green smoke and mildew smoke detection and rejecting device 6; the green smoke and mildew smoke output belt conveyor 8 is connected with the free-falling The rejecting chute 11 on the type green smoke and moldy smoke detection and rejecting device 6 is connected; the accepting material belt conveyor 7 is connected to the accepting chute 17 on the free-falling type green smoke and mildew smoke detection and rejecting device 6 The entrance of the artificial leaf selection unit is connected with the output belt conveyor 9 of the stalked tobacco; the entrance of the manual selection belt conveyor is connected with the output belt conveyor 8 of blue smoke and mildewed smoke.

The free-falling green smoke and moldy smoke detection and removal device is composed of a penicillium smoke detection mechanism and a removal mechanism. The penicillium smoke detection mechanism is mainly composed of a light source, a camera, and an image processing mechanism. The light source irradiates the free-falling tobacco leaves sent out from the feed chute 13, and the camera collects images of the tobacco leaves and transmits them to the image processing mechanism. The image processing mechanism processes the image data and recognizes Whether there are blue smoke, mildewed tobacco leaves and non-grade tobacco leaves. If there is such a tobacco leaf, the position of the tobacco leaf is calculated and the information is sent to the rejecting mechanism. The rejecting mechanism is mainly composed of a blowing nozzle 18 and a solenoid valve 19. When green smoke, mildewed tobacco leaves and non-grade tobacco leaves move to the blowing nozzle 18, the solenoid valve 19 will control the blowing nozzle 18 to eject gas to blow the green smoke, mildewed tobacco leaves And the non-grade tobacco leaves are sprayed into the rejection chute 11 to realize the rejection of non-grade tobacco leaves such as blue smoke and mildewed tobacco leaves, and the qualified tobacco leaves then directly fall into the acceptance chute 17.

The color of tobacco leaves is mainly a combination of red and yellow, the hue range is about 0-90 degrees, and the blue color is about 180 degrees. Therefore, using hue to distinguish qualified tobacco leaves from green smoke has a good effect. The test results of actual tobacco leaves are shown in Figure 8.

It can be seen from Figure 8 that the H component of the qualified tobacco leaf image, which represents the hue of the image, is basically distributed below 60 degrees, and the peak value of the distribution is around 20 degrees, with a deviation of 5 degrees left and right.

Under the same conditions, the image of Qingyan was taken, and the result shown in Figure 9 was obtained. From Figure 9, it can be seen that the hue (H) value of Qingyan is mainly distributed around 180 degrees, with 180 degrees as the center peak , left and right distribution, above 60 degrees, there is also a part of the distribution, this is because the green smoke still contains the color of a part of the qualified tobacco leaves and there is background interference. It can be seen that the two can be effectively distinguished in the HIS space.

As shown in Figure 3, the free-falling green smoke and moldy smoke detection and removal device includes a frame 10, a feeding chute 13, a rejecting chute 11, an accepting chute 17, a first camera 12, and a second camera 15. Background roller 14, image recognition module and air blowing rejecting device 16; feed chute 13, rejection chute 11, acceptance chute 17 and camera device are all installed on frame 10;

The connecting belt conveyor 5 is connected to the entrance of the feed chute 13, and the background roller 14 is arranged below the outlet of the feed chute 13; the camera is positioned at the side of the background roller 14, and the light inlet of the camera is facing the background roller 14 The receiving trough 17 is arranged on one side of the blowing and rejecting device 16 below the background roller 14, and the rejecting trough 11 is arranged on the opposite side of the rejecting trough 11 under the background roller 14;

The rejecting device includes a blowing nozzle 18 and a solenoid valve 19 that controls the air passage of the blowing nozzle 18. The solenoid valve 19 communicates with the air source; When the blowing nozzle 18 is blowing, the tobacco leaf is blown into the rejecting trough 11; when the blowing nozzle 18 is not blowing, the tobacco leaf falls freely into the receiving trough 17; the camera device outputs the captured tobacco leaf image information to the image recognition module , the solenoid valve 19 is controlled by the output signal of the image recognition module.

There are two background rollers 14 arranged side by side in a horizontal direction; two sets of imaging devices are arranged on both sides of the two background rollers 14, and the light inlets of the two sets of imaging devices face the two background rollers 14 respectively. All contain digital video camera 21 and be positioned at the LED light source 20 of camera front end; Two cover camera devices are the first camera device 12 and the second camera device 15, and the first camera device 12 and the second camera device 15 integral shape can also be linear It can be L-shaped; the camera device is provided with an air inlet pipe interface for introducing airflow from the outside. Used to prevent dust, tobacco leaves and debris from entering through the light entrance.

A tobacco leaf sorting method based on the aforementioned free-falling green smoke and moldy smoke detection and removal device, the tobacco leaves are dropped from the connecting belt conveyor 5 onto the feeding chute 13, and then slide down through the feeding chute 13 to In the detection area, a CCD camera device is used to take images of tobacco leaves passing through the detection area; the image recognition module processes and recognizes the tobacco leaf images. The nozzle 18 blows the current tobacco leaves into the rejecting trough 11; otherwise, when the blowing nozzle 18 does not blow air, the tobacco leaves freely fall into the accepting trough 17, thereby realizing the sorting of the tobacco leaves;

The camera device is provided with an air intake pipe interface, which introduces airflow from the outside and forms an outward airflow at the entrance of the camera device to prevent debris from entering from the entrance of the camera device, so as to avoid the interference of debris on the camera device when the machine is working.

There are rubber feet on the bottom of the frame 10, which can act as a buffer and can be adjusted to a certain height, so as to ensure that the corresponding installation positions on the frame 10 are accurately positioned.

The rejecting trough 11 is provided with an airflow evacuation mesh and an air inlet, that is, after the airflow ejected from the blowing nozzle 18 enters the rejecting trough, the air outlet is provided to prevent its influence on dust removal; the air inlet is Use the principle of negative pressure to remove the dust and some impurities in unqualified tobacco leaves. The rejecting chute 11 can be horizontally adjusted in position on the chute pillars on both sides.

As shown in Figure 7, the first camera device 12 is placed on the top of the rejection trough 11, and the inside of this device is provided with a digital camera 21 and an illumination source 20; Mainly prevent foreign matter and dust from entering, and protect the lens and photosensitive chip in the camera device); the lighting source 20 is aimed at the tobacco leaves in free fall; the signal output end of the digital camera 21 is connected with the signal acquisition end of the image recognition processing module; the lighting source 20 includes LED lights I and LED lights II are placed on both sides of the incident light, so that the falling tobacco leaves are clearly visible; the two groups of light sources are symmetrically arranged relative to the incident light, so that the lighting light is most suitable for the tobacco leaves at the detection point Angle; the digital camera 21 completes the shooting of the tobacco leaf picture, and transmits it to the image recognition processing module for analysis, processing, calculation, and obtains information such as whether the tobacco leaf is qualified, whether there are sundries, and the specific positions of the unqualified tobacco leaves and sundries.

The first camera device 12 and the second camera device 15 have an air intake duct interface, which introduces airflow from the outside, forms an outward airflow at the entrance of the light source, prevents dust, tobacco leaves and sundries from entering from the light entrance, and when the machine is working , can reduce the influence of factors such as dust and tobacco leaves on the light-transmitting glass, reduce external interference, and thus ensure visual judgment.

The feed chute 13 is arranged directly above the first camera 12, the second camera 15 and the background roller 14, and the both sides of the feed chute 13 are provided with notches for placing stainless steel chute track pallets ; The whole feed chute 13 is a modular whole, can be adjusted horizontally and vertically on the frame 10, easy to install and easy to maintain.

The background roller 14 is used to capture the background background formed by the reflected light of the background roller when there is no tobacco leaf passing through the detection area or when there is a gap between the tobacco leaves. The background roller is designed to be cylindrical and can be rolled, so that the dust and tobacco leaves that occasionally fall on the background roller will not stay on the background roller.

The background roller 14 is made up of the No. I background roller and the No. II background roller, and is arranged directly below the feed chute 13; the center of the No. I background roller is arranged in the second camera device 15 to detect the reflection of the digital camera 21 of the lighted tobacco leaves. On the extension line of the light; the center of No. II background roller is arranged on the extension line of the reflected light from the first camera device 12 to the detection of the lighted tobacco leaves; the two background rollers are independent of each other, powered by two identical motors, and keep It rotates at the same speed at a constant speed, and the background roller is coated with special pigments to ensure that the tobacco leaves and sundries are clearly visible. Use 2 sets of cameras to shoot the front and back sides of the tobacco leaves to obtain images of the front and back sides of the tobacco leaves, and unqualified blemishes on either side can also be detected.

As shown in FIG. 7 , a rejecting device is installed directly below the second camera device 15 . Air blowing rejecting device 16 is made up of solenoid valve 19, blowing nozzle 18. The solenoid valve 19 and the blowing nozzle 18 are fixed on the solenoid valve mounting plate, and the solenoid valve 19 is arranged in a line on the mounting plate. Solenoid valve 19 communicates with the air cavity storing compressed air, mouthpiece 18 is aligned with free-falling tobacco leaves and sundries, the controlled end of solenoid valve 19 is connected with the solenoid valve drive module of image recognition processing module, mouthpiece 18 is placed horizontally, The length of blowing nozzle 18 is slightly greater than the effective width of feeding chute 13, guarantees that the hole on the blowing nozzle 18 is corresponding to tobacco leaves and sundries after passing through chute. The blowing direction of the airflow of the blowing nozzle 18 is perpendicular to the direction in which the tobacco leaves and debris fall freely, that is, the horizontal direction. This is calculated according to the parabolic sliding track of the blowing direction of the airflow of the blowing nozzle 18, which can ensure that unqualified tobacco leaves and debris are removed. Blowing nozzle 18 is blown on the slideway in the rejection chute, slides down on the blue smoke and moldy smoke output belt conveyor 8 along the slideway. After the electromagnetic valve 19 obtains the opening information of the electromagnetic valve driving module, the electromagnetic valve 19 starts immediately to blow away unqualified tobacco leaves and foreign matter.

The image recognition processing module includes a digital camera 21 and an image processing module, the image processing module is connected with the man-machine exchange system and the solenoid valve driving module, and the solenoid valve driving module is connected with the solenoid valve 19 . The digital camera 21 is a three-CCD line scan camera; the image processing module is an FPGA+DSP image processing hardware platform.

The human-machine exchange system includes a display screen and an input keyboard. The information of the tobacco leaves to be tested can be input through the keyboard, while the display screen displays the input information of various tobacco leaves, such as color, shape, size and so on. First, enter the parameter values that qualified tobacco leaves need to meet through the keyboard, and then transmit the information of a part of qualified tobacco leaves to the intelligent image processing module. The image processing module analyzes the characteristic parameters of these qualified tobacco leaves, and then transmits these characteristic parameters to the man-machine exchange system. Inside. Constantly modify and adjust the qualified tobacco leaf parameter values in the human-machine exchange system through the characteristic parameter values of the actual qualified tobacco leaves, until the parameter values of the ideal qualified tobacco leaves are obtained, and then fix them in the human-machine exchange system. At the same time, the parameter values of the finally obtained ideal qualified tobacco leaves are also stored in the intelligent image processing module.

Described digital camera 21 transmits the collected tobacco leaf image to the image processing module, and the image processing module compares with the parameter value of the ideal qualified product stored in the image processing module before according to characteristic parameters such as color, shape, and size, Accurately identify unqualified tobacco leaves and sundries, and drive the solenoid valve drive module, which automatically and accurately drives the corresponding solenoid valve 19 to work after receiving the signal from the image processing module, to remove them. The image processing part belongs to the prior art (the relevant principles are briefly introduced in the beneficial effect section).

Fig. 7 is a schematic diagram of tobacco leaves passing through the free-falling green smoke and moldy smoke detection and removal device, the background roller is rotatable, and a motor is fixed on one end surface.

Claims (4)

1. A sliced tobacco segmentation and selection equipment, characterized in that it includes a hemp thread removal device, a tobacco stem detection and removal device, a free-falling green smoke and moldy smoke detection and removal device, and a manual leaf selection device configured in sequence; Raw sheet tobacco enters from the entrance of the flax removal device; qualified sheet tobacco is output from the free-falling blue smoke and moldy smoke detection and removal device; the mixed tobacco leaves containing tobacco stems separated by the stem detection and removal device are used The artificial leaf selection device removes the tobacco stems by manual destemming, and the leaves are mixed into qualified tobacco sheets for recycling; The mixed tobacco leaves of mildewed tobacco are manually sorted and removed by manual leaf selection device, and then the usable tobacco leaves are blended into qualified tobacco sheets for recycling. 2. The sliced tobacco segmentation and selection equipment according to claim 1, characterized in that, the free-falling green smoke and moldy smoke detection and removal device includes a frame (10), a feeding chute (13) , reject hopper (11), accept hopper (17), first camera device (12), second camera device (15), background roller (14), image recognition module, air blowing rejecting device (16) ; Feed chute (13), rejection chute (11), acceptance chute (17) and camera device (12, 15) are all installed on the frame (10); connect belt conveyor (5) and feed The entrance of chute (13) links to each other, background roller (14) is arranged on the outlet below of feeding chute (13); Camera device (12,15) is positioned at the side of background roller (14), and the light of camera device enters The mouth is facing the background roller (14); the acceptance chute (17) is arranged below the blowing and rejecting device (16), and the rejecting chute (11) is arranged on the opposite side of the accepting chute (17); the blowing and rejecting device ( 16) comprise blowing nozzle (18) and the solenoid valve (19) that controls this blowing nozzle (18) gas path on-off, and solenoid valve (19) communicates with air source; Blowing nozzle (18) is arranged on background roller (14) and The side between the upper mouth of the rejection chute (11); when the mouthpiece (18) blows air, the tobacco leaves are blown into the rejection chute (11); when the mouthpiece (18) does not blow air, the tobacco leaves fall freely To the receiving trough (17); the camera device (12, 15) outputs the captured tobacco leaf image information to the image recognition module, and the solenoid valve (19) is controlled by the output signal of the image recognition module. 3. The sliced cigarette segmentation and selection equipment according to claim 2, characterized in that, there are two background rollers (14) arranged side by side in a horizontal direction; two sets of camera devices are arranged on the sides of the two background rollers (14). On both sides, the light inlets of the two sets of camera devices are respectively facing two background rollers (14), and each set of camera devices contains a digital camera (21) and an LED light source (20) positioned at the front end of the camera device; the two sets of camera devices There are inlet pipe connections for introducing airflow from the outside. 4. According to any one of claims 1-3, the segmented and selected tobacco lamination equipment is characterized in that, the hemp thread removal device comprises a drive roller driven by a driver with a brush or a sticky strip on it, The tobacco leaf collection conveyer belt located under the transmission roller is characterized in that one end of the transmission roller is suspended in the air, the other end is connected to the driver, and a roller cover with a brush or sticky strip on the surface is sleeved on the transmission roller; The roller sleeves are set as at least two groups paralleled up and down; the drive roller ends connected to the driver are directly connected to the power shaft of the power driver through the bearing housing with bearings on it; The bearing seat of the bearing is connected with the transmission wheel, and the transmission wheel is connected with the driving wheel installed on the main shaft of the power driver through a transmission belt or chain; The tobacco stem detection and removal device includes a high-speed conveyor belt arranged inside the closed metal cavity of the device, a line-scanning soft X-ray receiving sensor arranged under the high-speed conveyor belt, and a metal sensor placed above the line-scanning soft X-ray receiving sensor. The soft X-ray generating tube in the cavity and the high-speed computer connected with the line-scanning soft X-ray receiving sensor are characterized in that the soft X-ray generating tube is used to generate low-energy soft X-rays and the rays are transported through the high-speed conveyor belt Continuous transmission scanning of the tobacco sheet, the line scanning soft X-ray receiving sensor transmits the scanned image to the high-speed computer and uses the high-speed computer for intelligent calculation and analysis, and accurately measures the diameter of the tobacco stem contained in the tobacco sheet. Intelligent identification and location tracking of tobacco slices with stems whose stem rate exceeds the set value; The manual leaf selection unit includes a feeding conveyor connected to the smoke storage cabinet, a material receiving conveyor connected to the feeder, a feeding two-way conveyor, a material-separating two-way conveyor, a leaf-separating and material-separating conveyor unit and a selection Leaf job conveyor unit.

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